{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9620055","patent":{"patent_number":"US-9620055","title":"Organic electroluminescent display device including gamma reference voltage generator and method of driving the same","assignee":null,"inventors":[],"filing_date":"2008-12-09T00:00:00.000Z","publication_date":"2017-04-11T00:00:00.000Z","cpc_codes":["G09G","G09G","G09G","G09G","G09G","G09G"],"num_claims":14,"abstract":"An organic electroluminescent display device, includes: a gray level extractor that extracts gray levels of frame data signals for a frame image; an image type determiner that determines a type of the frame image using a distribution of the gray levels of the frame data signals, the type of the frame image being one of a low-gray-level type, a medium-gray-level type and a high-gray-level type; a gamma reference voltage generator that selects a set of gamma reference voltages based upon the image type; a data driver converting the frame data signals into frame data voltages using the selected set of gamma reference voltages; a timing controller that supplies the frame data signals to the data driver; and a display area including pixels having an organic light emitting diode that display the frame image."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Organic electroluminescent display device including gamma reference voltage generator and method of driving the same","description":"An organic electroluminescent display device, includes: a gray level extractor that extracts gray levels of frame data signals for a frame image; an image type determiner that determines a type of the","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9620055","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9620055","citation_suggestion":"Patentable. \"Organic electroluminescent display device including gamma reference voltage generator and method of driving the same\" (US-9620055). https://patentable.app/patents/US-9620055","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9620055","json":"https://patentable.app/api/llm-context/US-9620055","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T15:06:03.357Z"}